A feedback-system for managing the position of a frontal camera provided on a portable multimedia device during video communication. The feedback-system comprises a camera image analyzer coupled to the frontal camera and adapted to detect and analyze the pose of a user facing the frontal camera, an optimal video estimator coupled to the camera image analyzer and adapted to calculate a 6-dimensional error-vector of the current position of the frontal camera with respect to an optimal position of the frontal camera, an intuitive feedback manager coupled to the optimal video estimator and adapted to generate a transformation matrix translating the error-vector into an error message for the image displayed on a screen of the portable multimedia device, the intuitive feedback manager being further coupled to the portable multimedia device which is adapted to use the error message for modifying the image displayed on the screen.

First claim

1. A feedback-system for managing during video communication the position of a frontal camera provided on a portable multimedia device,
wherein said feedback-system comprises
a camera image analyzer coupled to said frontal camera and adapted to detect and analyze the pose of a user facing said frontal camera,
an optimal video estimator coupled to said camera image analyzer and adapted to calculate an error-vector of the current position of said frontal camera with respect to an optimal position of said frontal camera,
an intuitive feedback manager coupled to said optimal video estimator and adapted to translate said error-vector into an error message for the image displayed on a screen of said portable multimedia device, said intuitive feedback manager being further coupled to said portable multimedia device which is adapted to use said error message for modifying the image displayed on said screen.